This alert expired on 17 March 2026 at 04:00 UTC. It is kept here as a record.
It is the 66th strongest of the 265 detections recorded within 20 km of this point since 11 March 2026. The last comparable one was on 16 March 2026. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued March 16 at 8:18PM EDT until March 17 at 12:00AM EDT by NWS Mount Holly NJ
An estimated 364,634 people live within 50 km of this point.
Nearby, since 11 March 2026
- September 1, 2026 · score 37 · 0.0 km
- August 27, 2026 · score 43 · 0.0 km
- August 10, 2026 · score 43 · 0.0 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 83 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 83% |
| Coordinates | 39.0000, -76.0500 |
| Nearest City | Easton (26 km) |
| Population Exposed | 364.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T00:18:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.b77c1efbae7d99c48632e8725a2d3d31 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Delaware Bay waters north of East Point NJ to Slaughter Beach DE; Delaware Bay waters south of East Point NJ to Slaughter Beach DE; Coastal waters from Cape May NJ to Cape Henlopen DE out 20 nm; Coastal waters from Cape Henlopen to Fenwick Island DE out 20 nm; Kent, DE; New Castle, DE; Sussex, DE; Caroline, MD; Kent, MD; Queen Anne's, MD; Talbot, MD; Atlantic, NJ; Burlington, NJ; Camden, NJ; Cape May, NJ; Cumberland, NJ; Gloucester, NJ; Ocean, NJ; Salem, NJ; Chesapeake Bay from Pooles Island to Sandy Point MD; Chesapeake Bay from Sandy Point to North Beach MD; Chesapeake Bay from North Beach to Drum Point MD; Chesapeake Bay from Drum Point MD to Smith Point VA; Tidal Potomac from Key Bridge to Indian Head MD; Tidal Potomac from Indian Head to Cobb Island MD; Tidal Potomac from Cobb Island MD to Smith Point VA; Chester River to Queenstown MD; Eastern Bay; Choptank River to Cambridge MD and the Little Choptank River; Patuxent River to Broomes Island MD; Tangier Sound and the inland waters surrounding Bloodsworth Island and 3 more areas |
| Headline | Severe Thunderstorm Watch issued March 16 at 8:18PM EDT until March 17 at 12:00AM EDT by NWS Mount Holly NJ |
| Expires | 2026-03-17T00:00:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | false |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b77c1efbae7d99c48632e8725a2d3d31a81d4d1c.002.1","noaa_urn:oid:2.49.0.1.840.0.b77c1efbae7d99c48632e8725a2d3d31a81d4d1c.001.1","noaa_urn:oid:2.49.0.1.840.0.d2d762cc7528bb76cd42ea27934b1f85035e82a6.002.1","noaa_urn:oid:2.49.0.1.840.0.d2d762cc7528bb76cd42ea27934b1f85035e82a6.001.1","noaa_urn:oid:2.49.0.1.840.0.bff1858fc47c67ce7bec0475a51bea43cbc27aba.002.1","noaa_urn:oid:2.49.0.1.840.0.bff1858fc47c67ce7bec0475a51bea43cbc27aba.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | Hyattsville |
| Spc County | Prince Georges |
| Spc State | MD |
| Spc Comments | Tree fell on a vehicle at the 6400 block of Kilmer Street (LWX) |
| MergedSources | [{"id":"spc_wind_38.89_-76.87_149","source":"spc","severity":"medium","severityValue":45,"timestamp":1773706949871,"latitude":38.89,"longitude":-76.87}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Want to know when something happens near Easton?
Calamity.live data shows a weather event with CalamityScore 43/100, near Easton (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.